Struct Tier 

pub struct Tier<B = Nothing> { /* private fields */ }

Memory over a disk, or over nothing. Evaluation talks to memory alone; only memory decides whether a lookup, a read or a write passes through to the disk.

Implementations

impl Tier

pub fn new(max_bytes: u64) -> Tier

impl<B: Backend> Tier<B>

pub fn alone(max_bytes: u64) -> Tier<B>

pub fn over(disk: Store<B>, max_bytes: u64) -> Tier<B>

pub fn disk(&self) -> Option<&Store<B>>

pub async fn persist(&self) -> Result<Persisted, String>

Every node memory holds that the disk lacks, written, then committed there.

pub fn counters(&self) -> Counters

pub fn max_bytes(&self) -> u64

pub fn set_max_bytes(&self, max_bytes: u64)

pub fn bytes(&self) -> u64

pub fn entries(&self) -> usize

pub fn evictions(&self) -> u64

pub fn holds(&self, key: Hash) -> bool

pub fn policy(&self) -> CachePolicy

pub fn set_policy(&self, policy: CachePolicy)

pub fn prune(&self, policy: PrunePolicy)

Evicts every entry policy names.

pub fn clear(&self)

pub fn mark_every(&self) -> usize

pub fn set_mark_every(&self, samples: usize)

Trait Implementations

impl Default for Tier

fn default() -> Tier

Returns the “default value” for a type.